Machine



(No Model.) J. POTTER.

GARDING MAGHINB.

N0. 280,238. Y Patented JUDGZ, 1883.

WZw/esses, 4 In? 'elijan divina? Palle?? v UNITED STATES PATENT OFFICE.

l tions,77 of from siX to ten or more.

JAMES POTTER, OF LOWELL, MASSACHUSETTS, ASSIGNOR TO THE "WHITE- HEAD &ATHERTONMAOHINE COMPANY, OF SAME PLAGE.

CARDlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 280,238, dated June 26,1883.

Application filed February 5, 1883. (No model.)

To aZZ whom, it may concern:

Be it known that I, JAMES POTTER, of Lowell, in the State oflliassachusetts, have invent ed a certain new and useful Improvement inOarding-llIachines, of which the following is a specification.

In cotton-mills it is usual to arrange carding-machines in sets, or whatare termed sec- In each section the parts of each card which deliver thecotton to and remove it fromthe main cylinder are driven froina shaftcommon to all the machines. This shaft extends along under therailway-trough, (whichreceives and carries off the sliver or fleece fromthe several machines,) and is termed the railway-shaft. From this shaftmotion is communicated to the doffer of each machine, and from thedoffer movement is transmitted to the feed-rolls or lickersin andlap-roll of the machine. The doffer is connected to the railway-shaft bya belt and pulleys; and heretofore, whenever, for any reason, it hasbeen desired to stop the doffer, this has been accomplished by throwingoff` the belt. This operation is not only inconvenient and takes time,but, since the belt is short, and therefore necessarily very tight, isalso attended frequently with actual damage to the machine, for, whenthe operative attempts to throw off the tight belt quickly, so great astrain is put upon the railway-shaft as to fref quently spring it, thuscausing the belt to slip on the pulley when it is neXt applied thereto.When any trouble arises in a card, it is necessary to stop thisparticular card without stopping the railway-shaft and the other cardsof the section, and frequently this stopping must be effected in amoments time, in order to prevent the card from being seriously damaged.It becomes, therefore, a great desideratum to provide means whereby thisresult can be attained without injuriously inuencing or acting upon therailway-shaft; and it is this object which the present invention has inview.

The nature of the improvement and the manner in which the same is or maybe carried into effect can best be explained and understood by referenceto the accompanyipg l drawing, which represents in sectional elevationso much of the card-operating mechanism as is needed to illustrate theinvention.

I have not deemed it necessary to represent a section ofcarding-machines; nor have I deemed it requisite to represent onecardingon the hub of a pulley, G, mounted on an intermediate shaft orarbor, H, and driven from pulley B by a belt, I. Pulley G and pinion Fare connected by a spring-controlled lockingpin, a., which passesthrough pulley G into a socket, b, in the adjoining face of the pinion.The pin is pushed forward into the socket -by a spring, c, situated in arecess, d, in the hub of the pulley, said spring encircling the pin, andbearing at one end against the pulley and at the other end against ashoulder or crosspin, e, on the pin. Upon the end of the locking-pinthat proj ects beyond the outer face of the pulley is a knob or handle,f, from the in'- ner face of which projects a stud, g, adapted, when theparts are in position, to admit of the locking-pin entering socket b toenter a recess, lz., in the pulley far enough to permit the spring topush' forward the pin and seat |it in the socket. The pin is capable notonly of a sliding, but a rotary movement, so that if it be desired todisengage it from the pinion this can be done by taking hold of handlef, drawing back the pin out of engagement with `the pinion, and thenturning it, so as to bring the stud g to a point where it will rest uponthe unrecessed part t' of thepulley, in which position the stud willserve to retain the pin against the stress of its spring. By this meansit will be seen that the dbffer can be readily and instantaneouslythrown into and out of operative connection with the railway-shaftwithout disturbing the belt I or interfering with the continuousrotation of pulley G.

Having described my improvement and the best way known to me of carryingthe same IOO :2 p @emesse into effect, what I claim as new and of/my in-In testimony whereof l have hereunto set my Io Vention ishand this 1stday of February7 1883.

The combination, with the railway-shaft und the doffer of, itending-machine, of the pul- JAMES POTTER.

5 leys B G, belt I, (loifer-gear E, loose pinion F,

and spring-Controlled looking mechanism oonlVitnesses: y Y neoting saidpulley G and pinion F7 under the Y A. T. ATHERTON,

' arrangement and for operation as and for the C11-ms. T. ATI-IERTON.

purposes hereinbefore set forth.

